Slub-catcher for silk-winding machines.



E. D. GUDEBROD.

SLUB CATCHER FOR SILK wmmws MACHINES.

APPLICATION FILED AUG.3I. |9l7.

1,289,160. Patented Dec. 31, 1918.

2 SHEETSSHEET I.

E. 0. GUDEBROD.

SLUB CATCHER FOR SILK WINDING MACHINES.

APPLlCATlON FILED AUG.31.1917.

1,289, 160. I Patented Dec. 31, 1918.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

, EDWARD D. GUDEBROD, OEIPOTT STOWN, PENNSYLVANIA.

snunscarcnnn FOR SILK-WINDING MACHINES.

Specification of Letters Patent.

Patented Dec. 31, 1918.

Application filed August 31, 1917. Serial No. 189,061.

cally stop the winding when a slub or knot engages a contact fork, andalso stop the winding when the thread breaks or the end is reached. v

A further object is to provide an electrically controlled stop mechanismof the character stated which can be attached to the ordinarywindingmachine iii-general use, and which is so arranged as to preventwasting of the current when the machine is stopped.

With these and other objects in view, the

' invention consists in certain novel features of construction andcombinations and arrangements of parts as will be more fully hereinafterdescribed and pointed out in the claim. I

In the accompanying drawings:

Figure 1 is a diagrammatic view partly in elevation illustrating myimprovements,

Fig. 2 is a broken view partly in section on the line 2-2 of Fig. 1.

Fig. 3 is a view in section on the line 33 of Fig. 1.

Fig. 4 is an enlarged view in elevation partly in section showing themounting of the contact fork.

Fig. 5 is an edge view of Fig. 4, and

Fig. 6 is a fragmentary view of the opposite side-of, the device shownin Fig.4.

My improvements are to be used in connection with an ordinary type ofwinding machine, and-I have illustrated only such features f thewindingmachine as are necessary to illustrate my invention.

1 represents a foot lever having a crank arm 2 inovablethereby andconnected by a rod 3 with a, bell-crank-lever 4. A spring 5 is locatedaround the rod 3 between a fixed part 6 and a collar 7 on rod 3, so thatthe spring exerts a pressure on the bell-cranklever, holding it innormal position.

The bell-crank-lever 4 is connected to a bar 8 having slots 9 thereinthrough which pins 10 project to limit the sliding movement of the bar.The bar 8 adjacent its provided with a hook '18 having a laterallyprojecting lug 19 thereon engaged by a lever 20. This lever 20 ispivotally connected at one" end t a fixed part 21, and constitutes anarmature attracted by an electro-magnet 22 below the same, so that whenthe magnet is energized, it operates toelevate the link 13, release bar8, and allow spring'5'to move the bar inwardly.

23 represents a'spool which is drivenfby the machine, and themechanismabove described omitting the lever 20 and. electromagnet 22constitutes parts of a well-known type of winding machine.

The foot lever 1 is depressed to start the machine, and the link 13falls into the position shown in Fig. 2, causing the winding operationto continue untilithe kick-01f lever is operated to release the same. Itis, of course, to be understood that this kick-ofi lever can be manuallyoperated, and such is the common practice with machines of this type,and my invention consists solely in the automatic operation of saidlever as will be explained.

24 represents a bifurcated bracket which may be secured to the machinein any approved manner, and which supports my improved electric contactfork 25. The fork 25 is pivotally supported between its ends on a screw26, and its upper bifurcated or forked end is. adapted to receive thesilk thread 27 as it passes to the spool 23.

The lower end of the fork engages a wire spring 28, exerting sufficientpressure against the lowerend of the fork to hold it in normal positiondu'ring the'ordinary operation, but when a knot or slub reaches the forkand cannot pass through the same, it will cause the fork to swing on itspivot, and compel the lower end of the fork to engage an electriccontact 29 which is secured to a bolt 30, the latter insulated frombracket 24.

Bolt 30 extends through bracket 24, and is provided on its other endwith a contact 31 which is adapted to be engaged by a wire lever 32.This lever 32 is pivotally supported between its ends as shown at 33,and at one end is provided with a hook portion 34 which is supportedonthe thread 27, so that when the thread breaks, or the end of the threadis reached, the lever will pivot, and one end thereof will engage thecontact 31.

A contact 35 is secured to the machine frame 36 and insulated from thelatter, and this contact is in position to be engaged by bar 8 when thelatter is moved outwardly to operative position.

37 represents a source of electricity, and the electric circuit is asfollows :-The battery or electric source 37 is connected by a wire 38with contact 35. The other side of the battery or source of electricityis connected by a wire 39 with one pole of magnet 22. The other pole ofthe magnet is connected by a wire 40 with the bolt 30 which iselectrically connected with both contacts 29 and 31. The bracket 24 andother parts of the machine constitute the ground, and in ordinaryoperation, the contact 35 is against bar '8. The circuit is,

however, broken by the position of the fork V 25 and lever 32.

hen a slub or knot strikes the fork 25 and causes it to pivot, it willengage contact 29, and the circuit will be as follows from battery 37through wire 38, contact 35, and bar 8 to the ground. From the otherside of the battery 37, through .wire

39, electro-magnet 22, wire 10, contact 29,

fork 25 to the ground;

Electro-magnet 22 will be energized so thatit will draw down lever 20,causing the lever 14 to elevate link 13, and allow spring 5 to withdrawthe bar 8, which as above explained, causes the stopping of the windingmachine.

As soon as the bar 8 moves away from contact 35, the electric circuitis'broken, and there can be no waste of current. The contact is made inlike manner when the thread 27 breaks, or when the end of the thread isreached, as the lever 32 will engage contact 31 so that it will be seenthat my improvements operate to stop the winding to prevent the movementof a knot or slub onto the spool and also to stop the winding'when athread breaks.

The electric current cannot be wasted bebe started until the fork 25 andlever 32 are moved away from their contacts 29 and 31.

While I have described my invention as taking a particular form, it willbe understood that the various parts of my invention may be changedwithout departing from the spirit thereof, and hence I do not limitmyself to the precise construction set forth, but consider that I am atliberty to make such changes and alterations as fairly come within thescope of the appended claim.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

In a winding machine, the combination of a spring pressed bar movable bysaid spring to stop the machine; a link normally holding the bar againstaction of the spring; 7

a kick-ofl leverhaving a, portion for moving the link; an armature leverfor moving the kick-off lever; a lever normally resting upon the thread;'an'electro-magnet for actuating the armature lever; a bracket having anelectric contact'thereon; a threadguiding fork movably connected to thebracket and normally positioned away from the contact, said'fork beingmovable by a knot or slub in the thread into engagement with thecontact; and a source of electricity included in circuit with said firstmentioned contact, said magnet, and the fork, whereby when the forkengages said contact an electric circuit is' completed, and the springpressed bar is released by the link and moved by said spring to stop themachine, said second lever also being operative, when the thread isbroken'or discontinued thereunder, to engage said contact to completesaid electric circuit to stop the machine in said latter manner,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EDWARD n. GUDEBROD.

Witnesses: BIRGER SEA UID,

F. B. BINDER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

